Dispensing container for lubricating greasem, etc.



April 26 1927.

Filed May 25, 1925 INVENTOR.

ATTORNEY.

Patented Apr. 26, 1927. l

LOUIS WARE, OF MIAMI, ARIZONA.

DISPENSING CONTAINER FOE LUBRICATING GREASE, ETC.

Application filed May 25, 1925. Serial No. 32,834.

This invention relates to containers for substances of a semi-solidnature which are capable of being extruded, such as greases or heavyoils, pastes of various kinds, etc., and the main object of theinvention is to provide a container for this purpose which isserviceable. convenient, and at the same time of such cheap constructionas to permit it to be used in large quantities and to be thrown awayafter use if so desired.

The invention comprises in general a container formed of paper andtapered at one end toward a restricted opening at that end through whichthe material may be introduced to fill the container and through whichit may be subsequently extruded by squeezing the container. Theinvention further comprises means whereby said opening may beconveniently closed after the container is filled to prevent loss orcontamination of the contents until such time as they are tobe used.

My invention is especially adaptable to the needs of mines, quarries oropen cuts where many drilling machines are in use. The operation ofmachine drills in the greater part of all mining operations is inperiods or shifts of a few hours duration. An important object of thisinvention is to supply grease or oiher lubricants in small papercontainers of various sizes such as are adaptable to the needs of thevarious types of drilling machines for such periods of operation, orlonger. The invention is not limited to use with grease, however, as itmay be used in connection with any material capable of being extruded,and the expression grease or similar materials should be understoodto-include any such materials.

The accompanying drawings illustrate embodiments of my invention andreferring thereto: 8 V

Fig. 1 is a plan view of a dispensing container.

Fig. 2 is a longitudinal section on line 2-2 in Fig. 1, with thecontainer in the position which it occupies when filled.

Fig. 3 is a transverse section on line 3-3 in Fig. 1.

Figs. & and 5 are partial transverse sections on lines 4-4 and 55respectively in Fig. 1.

Fig. 6 is a section through the sealing means on line 6-45 in Fig. 1,but with the sealing means in position to close the container.

Fig. 7 is a partial section on line 7-7 in Fig. 1 showing one method offorming the closed end of the container.

Fig. 8 is a view similar to Fig. 7 showing a modified method of formingthe closed end of the container.

Fig. 9 is a partial section on line 9-9 in Fig. 1 showing one method offorming the tapering portion of the container.

Figs. 10 and 11 are views similar to Fig. 9 showing modified methods offorming the tapering portion of the container.

The container according to my invention is preferably formed of paper orsimilar material and for use in connection with grease or heavy oils Iprefer to form the same of oiled or waxed paper of suflicient strengthand thickness to withstand usage and prevent leakage of materialtherethrough. Said container may be formed as shown in the general shapeof a paper bag or sack. having two plane side wall portions 1 directlyunited at their two longitudinal edges and at one end. I prefer to formthe container from a single paper blank and to fold and fasten the sameso as to provide a bag; for example, the two edges of such blank may beconveniently joined together at the middle of one of the sides of thecontainer as indicated at 2. For this purpose the two edges of the blankmay be bent over and caused to interlock with one another as indicatedat 3 in Figs. 3 and 4, the interlocking portions being secured togetherby means of glue or other adhesive material indicated at 4. Thecontainer is further closed at one end by bending up the edges andfastening the same as indicated at 5. Said end fastening may beaccomplished by simply folding over the two edge portions 6 of the sidemembers and fastenin by means of glue as shown at 7 in Fig. or as shownin Fig. 8 one of the side members 1 may be provided with a doubled backportion 8 adapted to interlock with a bent over ill portion 9 at theedge of the other side memher, said portions 8 and 9 being securedtogether with glue at 10.

The folds or creases 12 between the two side members may extendsubstantially parallel throughout the greater port1on of the length ofthe container so as to provide a substantially uniform width throughoutsuch portion of the length. At one end however the container is taperedas indicated at 13 so as to provide a restricted opening 14 at this endof materially less width than the width between the sub stantiallyparallel edge portions. When forming the container from a single blankthe tapering portion may be formed by cutting away portions of the blankand bending over the edges and, gluing such bent over edge portionstogether. For example as shown in F ig. 9 one edge may be provided witha doubled back portion 16 adapted to engage or interlock with a bentover portion 17 on the other edge, said portions 16 and 17 being securedtogether with glue at 18. Or as shown in Fig. 10 each of said edges maybe'bent over as at 19 and the two opposing sides, of such bent overportions fastened together with glue as at 20, or the two edge portionsmay be bent over one another and secured together with glue as indicatedat 21 in Fig. 11. v

Provision may be made for closing the open end of the container bybending back or folding overthe two side walls of the container, forexample along the llne 23, so

as to form a closing flap 24, and if desired any suitable temporarysecuring means may be provided for holding said flap in such bent overposition and thus preventing loss of the contents. I prefer however toprovide means whereby when the ends of the side portions are bent overas indicated at 24 they will be caused to retain this posit on withoutnecessity of applying any fastening means, and for this purpose I preferto provide a strip 25 of soft metal, extending along one side of thecontainer and across the line 23 at which the same is to be folded forclosing. Said metal strip may extend for example from the open end ofthe container to any suitable distance beyond the line 23, for examplethe position indicated at 26 in Fig. 1. This metal strip may be formedof any suitable metal which is sufliciently soft or pliable to permit itto be readily bent and should be of such thickness as to permit of suchbending but to retain any position into which it is bent so as to holdthe end of the container in bent over or closed position. Saidre-enforcing metal strip may advantageously be located, as shown,between the interlocking edge portion 3 of the container.

The paper container may be formed in any suitable manner which willprovide the flexibility and the tapering outlet required for theoperation of the device for the purpose stated. In particular, the seamsmay be located at any part of the bag, either at the edges or sides, andmay be formed and fastened in any suitable manner.

In application of this container the grease pr other material for whichit is to be used is charged into'the container in any suitable mannerfor example by inserting the spout of an extruding machine into theopening 14 and applying pressure to the material so as to force the sameinto the container. It will be nnders'ood that the container preferablySo formed as to lie llat throughout before use, with the two plane sideportions including the tapered portions thereof resting against oneanother substantially throughout. This is of considerable practicaladvan'age as it permits a maximum number of the containers when empty tobe piled in a given space for storage or for shipping purposes. It n'iaybe opened up for lilling by pressing on the two edges 12 so as to openthe container'into the position shown in Fig. 3, whereby the opening 14is enlarged sufliciently to permit insertion of the spout of theextruding machine or other means to be used in filling the container.The charging of the material into the container under pressure serves tostill further expand the same for example to the position shown in Fig.2. The closing flap 24 may then be bent over as above described so as toclose the container at this end and retain the material therein and themetal strip 25 serves to hold said flap in any position to which it maybe bent. Whenever it is desired to extrude a portion of the contentsfrom the container the closing flap 24 is again bent out to openposition and by pressure on the sides of the container any desiredamount of the 'material contained therein may be extruded. When thedesired amount of material has been removed the closing flap may againbe bent back to closed position. \Vhen the container is empty it may bethrown away, the cheapness of the container resulting from its beingformed of paper being of especial advantage in this connection.

The above described container is particularly intended and adapted foruse in dispensing and applying greases or heavy oils and is especiallyuseful for supplying grease to the drilling machines in mines, quarries,

etc., or in any case where grease must be continually supplied in smallamounts to a large number of mechanical units distributed at many pointsthroughout a large plant or organization. The procedure in such caseswould be to fill a large number of these containers of various sizeseach containing for example sutiicient grease for use on some drill orother piece of mechanical equipmentfor one shifts operation The usuarequirement for a days operatlon by one drill operator is about 4 to 8ounces. Each operator of such a machine upon coming to work is suppliedwith one of these packages of grease of the proper size for hisparticular machine. From time to time during the days operation thelubricant is fed from the container to the machine by pressure upon thecontainer, the open end of the container being for example inserted intothe grease cup or other opening into which the grease is to be fed. Whenthe container is empty of grease it may be discarded; The number ofthese containers thus used and thrown away in a. day, in a largeorganization, is very great and it is therefore of the utmost importancethat they should be of the cheapest possible construction. The containerformed, according to my invention, of oiled' paper, and fabricated bysimple methods from a single blank. is therefore highly advantageousfrom this point of view.

In all mines, quarries or open cuts where numerous expensive drillingmachines are in use great losses are incurred to such equipment becauseof insufficient lubrication. The nature of mine workings, where facesare drilled by machine drills is such that it has been difficult tosupply lubricants to the machine drill operators in such a manner thatis convenient to carry to the working places and use. It is the generalcustom to furnish oil or grease in bottles or cans of various types andsuch methods have proven highly unsatisfactory. Containers of this typeare expensive and the cost of maintaining such a scheme of distributionof lubricants is high. The drill operators lose them or they becomeeasily damaged due to the rough character of the working places. In mostcases, faces that are being drilled are isolated and the care of thedrilling equipment is left entirely to the drill operator. The oilcontainers or other accessories to the machine drills cost him nothingand the proper care of such parts requires effort on his part. Themachines and accessories are heavy and diflicult to handle; the drifts,stopes or other working places of mines are usually dirty and hot or ofsuch character that it is difiicult to keep small parts clean and ingood condition. The equipment is often left too near the blast andlubricant containers are broken and damaged beyond use by the force ofthe explosion. Lubricant containers are often left lying in the muck orbroken material and dirt gets into the lubricant rendering it unfit foruse. All bottles or can containers consist of two parts; a large portionand a stopper or covering of some kind. These parts easily become lostand containers without stoppers or coverheavy, awkward containers thatare difficult to carry and inconvenient to use. There is also a greatwaste of lubricants due to the use of containers that do not permit easyI injection of the material into the machine. Oil poured from bottles orcans is ineflicient, sometimes more than half of the oil being spilled.If grease or other lubricant is scraped into the machine, dirt is likelyto get mixed with it with resultant damage to the machines.

The inadequate lubrication of machine drills has constantly been asource of expense and one of worry to the drill manufacturer as Well asto the purchaser of such 'machines, since both are desirous of bestpossible performance. Various kinds of containers and schemes havebeendevised, but no method has been developed which would permit ofeconomical use of lubricants and supply it in a manner convenient totransport to working places and use. This object, however, isaccomplished by the use of the container above described, as it permitseificient and economical use of the lubricant and is of the utmostconvenience for transporting and using and results in better care of themachine drills.

I claim:

1. A. dispensing container formed of a sheet of flexible material foldedflat along two lines to form two parallel side walls of the receptaclewhose inner faces normally lie in contact with one another, the edges ofthe sheet being fastened together along a line intermediate the saidfold lines and the lower edges of said sheet being folded over andsecured to form the lower end of the container, the upper portion of thecontainer being formed with converging edges extending upwardly from theaforesaid fold lines to the upper end of the container, so as to form acontainer opening at such upper end, such upper end portionof thecontainer being adapted to be folded to close the upper end of thecontainer.

2. A container as set forth in claim 1 in which the upper end portion ofthe container is provided with a flat strip of pliable material securedthereto and extending lengthwise of the container for the purpose setforth.

3. A dispensing container comprising two flat side walls of flexiblematerial which are substantially parallel throughout and which aredirectly connected to each other at two 5 lateral edges and at one endso that their inner faces lie in contact with one another substantiallythroughout, said side walls being free from connection to one another atthe other end so as to'provicle an opening, and said lateral edgestapering, throu hout at least a portion of the length, inwardly towardsaid opening.

In testimony whereof I have hereunto subscribed my name this 16th day ofMay, 1925.

LOUIS WARE.

